Counterbalanced side bearing



1 Aug 927 s. B. HASELTINE COUNTERBALANCED SIDE BEARING Filed July 21, 1923 side bearings.

Patented Aug. 23, 1927.

UNITED STATES PATENT OFFICE.

STACY B. HASELTINE, OF CHICAGO, ILLINOIS, ASSIGNOR, BY MESNE ASSIGNMENTS,

TO W. H. MINER, INC., A CORPORATION OF DELAWARE.

- COUNTEBBALANCED' SIDE isnnnIiwer.

Application fil ed July 21,

This invention relates to counter-balanced 'One object of the invention is to provide an anti-friction side bearing, especially adapted for railway cars, wherein are em ployed a minimum number of parts, so constructed that the anti-friction element, proper will be returned to central position solely under the influence of gravity.

Another object of theinvention is to provide an anti-friction bearing of the type indicated, wherein are provided means for positively maintaining a predetermined re lation between the anti-friction element and retaining member, in all posit-ions of .the anti-friction element.

A further object of the invention is to provide an anti-friction bearing of the type in dicated wherein the anti-friction element is so shaped that it'has contact with'the hous ing walls in substantially all positions thereof, thereby preventing the entrance of foreign matter into the. housing beneath the anti-friction element. l I

Y Other obiects and advantages ofthe invention will more clearly appear from'the description and claims hereinafter followmg. 4 4

In the drawing, forming a part of this specification. Fig. 1 is a vertical, sectional view'taken through the end ofa car body bolster and truckbolster, showing my improvements in connection therewith. Fig. 2 is a top plan view ofthe anti-friction bearing proper shown in Fig. 1 AndFig. 3 is a vertical, sectional view taken substantially on the line 3 3 of Fig. 1. e

In said drawing, 10 denotesthe under side of a car body bolsterand 11 the upper side of an opposed truck bolster. I have shownmy improved hearing as secured to the truck bolster. The bearing comprises, broadly, a retainer member or base'casting A ;and .a anti-friction element B. Y

The retaining member or base casting is in the form of an arched housing. open at the top and bottom. having parallelspaced side walls 1212 and upwardly andinwardly curved end walls 13 13, the side walls being provided with continuous lat eral flanges 14 along the edges thereof,-projecting inwardly at right angles therefrom 1923. r Serial no. 652,903.

and forming a continuation of the end walls 13, defining an opening 15 through which the upper-portion of the anti-friction element-is adapted co-project. The opposite end portions of the flanges 14, adjacent the walls 13, are upwardlyand inwardly curved similarly to the end walls, 13, and theinner surfaces thereof form continuations of the curved inner bearing surfaces of the walls 13. The upper, "longitudinally extending portion 17 of the flanges whichconnect the end portions 16 are also slightly curved up- Wardly, as clearly shown in Fig. 1. At the lower edges, the sidewalls are provided with, longitudinally extending, outwardly proiecting flanges 18 having corner lugs 19,. perforated to' accommodate rivets or other suitable securing means for attaching the member to the bolster- To promote the life of the bearing.I preferably provide a transversely extending steel plate 20, which also serves as a shelf to support the antifriction element above the upper surface of the truckbolster. the flanges 18 of the housing being centrally off-set to provide transversely extending. downwardly opening, alined channels 2121 adapted to accommodate the opposite end portions of the plate 20. the lat erbeine' rigidly secured to the housing A by rivets fastened through the off-setportions of the flanges 18.

As clearly indicated in Fig. 1. the shelf or plate 20 is disposed centrallv.lengthwise of the member A with a considerable. clearance between each edgeof the plate and the inner face of the adiacent. end wall 13. Furthermore. the combined shelf and plate 20 is so formed as to present the upper face or bearing surface at a considerable elevation above the bottom proper of the member A and the upper surface ofthe truck bol ter. To ta cilitate the clearing out of dirt or other foreignmatter which may accumulate with- I 110W consider the preferred manner of carrying out the invention, but the same is merely illustrative and I contemplate all changes and modifications thatcome within the scope of the claims appended hereto.

I claim:

1. In an anti-friction bearing, the combi nation with a housing having side and end walls; of an anti-friction rocker within the housing shaped and adapted to always closely approach all of said walls in all positions of the rocker to substantially prevent the entrance of any foreignmaterial from above the anti-friction rocker to a point below it.

2. In an anti-friction bearing, the combination with a housing open at the top and having end walls spaced longitudinally of the housing; of an anti-friction rocker movable longitudinally within the ends of the housing, said rocker being provided .with rounded ends adapted to simultaneously engage both ends of the housing throughout the movement of the rocker and having a bearing projection thereon extending through and above said opening.

3. In an anti-friction bearing, the combinationwith an arched housing having upwardlyand inwardly curved end Walls; of an elongated gravity centering rocker disposed within said housing, said rocker being of a width approximating the width of the housing and having its opposite ends in substantially constant but light engagement with the opposite end walls of said housing.

4. In an anti-friction bearing, the combination with an arched housing having upwardly and inwardly curved end walls; of

an elongated rocker disposed within said housing, said rocker being of a width approximating the width of the housing and having its opposite ends adapted for light engagement with the opposite end walls of said housing, said housing being provided with inwardly extendingflanges adapted to overhang the opposite sides of the rocker and retain the-same within the housing.

5. In an antifriction bearing, the combination with an arched housing having upwardly and inwardly curved end walls; of

an elongated rocker disposed within said cured to a truck bolster and co-acting with the opposed body bolster of a car, the combination with a housing having side and end walls, said side walls being provided with inwardly extending flanges; of an anti-fric-' tion element within the housing, said element having an upper bearing portion extending beyond said flanges and adapted to co-act with the body bolster, said element being elongated and having its opposite ends adapted for lightengagement with the opposite end walls of said housing; a plate secured with the said housing and adapted to support the anti-friction element spaced above the upper surface of the truck bolster, said element having means thereon adapted to engage the end walls and flanges of the housing and the upper surface of the truck bolster to limit its rocking movement.

In witness that I claim the foregoing I have hereunto subscribed my name this 19th day of July 1923.

STACY B. HASELTINE. 

